P0354 on Honda
Ignition Coil D Primary/Secondary Circuit Malfunction
P0354 on Honda vehicles indicates ignition coil d primary/secondary circuit malfunction. Au7o has documented this code across 1 Honda model — most commonly on Fit. This is an ignition/engine code. The ignition coil boosts low battery voltage into the high-voltage spark that ignites the air-fuel mixture. P0354 means the engine computer detected a fault in the primary or secondary circuit of ignition coil 'D' — the coil isn't returning the proper signal when it's told to fire. This commonly produces a misfire, rough running, hesitation or reduced power, and ongoing misfires can damage the catalytic converter over time. Typical repair costs on Honda range from $80 to $300, depending on the specific model and root cause.
Common Causes of P0354
- •Failed ignition coil 'D'
- •Damaged wiring or corroded connector at the coil
- •Open or short in the coil primary/secondary circuit
- •Worn or fouled spark plug adding load to the coil
- •Poor power or ground supply to the coil
- •Faulty ignition driver in the ECM (less common)
P0354 on Honda by Model
Honda Fit(1 issue)
- Ignition Coil Failure2007-2020
Ignition coil packs can fail causing engine misfires. Usually one coil fails at a time. Engine misfire, rough idle, check engine light with misfire codes. Bosch ($50-80 each) or Denso ($60-90 each) replacement coils recommended on FitFreak. Replace all four at once ($200-300) to prevent future failures and repeated labor costs. DIY installation very easy (bolt on, connector plug) - saves $100-200 in shop labor.
Looking for P0354 on a different make?
View P0354 across all makes →Frequently Asked Questions
What does P0354 mean on Honda?▼
P0354 stands for "Ignition Coil D Primary/Secondary Circuit Malfunction." This is an ignition/engine code. The ignition coil boosts low battery voltage into the high-voltage spark that ignites the air-fuel mixture. P0354 means the engine computer detected a fault in the primary or secondary circuit of ignition coil 'D' — the coil isn't returning the proper signal when it's told to fire. This commonly produces a misfire, rough running, hesitation or reduced power, and ongoing misfires can damage the catalytic converter over time. On Honda specifically, this code is documented across 1 model.
What causes P0354 on Honda vehicles?▼
Common causes on Honda: Failed ignition coil 'D', Damaged wiring or corroded connector at the coil, Open or short in the coil primary/secondary circuit, Worn or fouled spark plug adding load to the coil, Poor power or ground supply to the coil. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0354 on a Honda?▼
Repair costs on Honda range from $80 to $300, depending on the specific model and root cause.
Which Honda models have P0354 documented?▼
Au7o has documented P0354 on 1 Honda model: Fit.